Opposed Blade Volume Damper 3000-0BD-34X12 Residential Registers & Grilles REVIT FILES Spiral Diffuser Radius

REVIT FILES Spiral Diffuser Radius Flush Mount Diffuser Single Deflection

Nylon bushings for easy adjustment and quiet setting of blades running parallel to shortest dimension

Damper manufactured from corrosion tested galvanized mild steel (G-90)

Standard Features *Surface mount return air grille * 0 fixed blades parallel to longest dimension * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White Options * 937 O - recessed screwdriver operated opposed blade damper * No Labor Collar (square sizes only) * 900 T - T-Bar mount * 905 HD - reinforced construction * 905 IS - insect screen * 1335-1338 Series - stainless steel version * Tamper proof screws

Options * Sleeve variations * 304 stainless steel construction * Fractional and odd sizes available h3

Opposed Blade Volume Damper 3000-0BD-34X12 Residential Registers & Grilles REVIT FILES Spiral Diffuser Radiush3. Standard Features * Opposed blade operation for precise volume control * 16 gauge galvanized channel frame * Blades are vee stiffened 16 gauge galvanized for strength and stability * Blades pivot on non metallic celcon bushings * 1 2" square zinc plated steel pivot pins * 1 2" square zinc plated steel adjustable operating shaft extending up to 4" beyond the air control frame * Single blades on dampers with a height of 12" or less * Mill finish h3.